Differential Pressure Transmitter Siemens QBM3020 is a high-quality device designed for measuring differential, over, and under pressure of air and non-aggressive gases. Equipped with a diaphragm sensing element, it delivers accurate pressure measurement with a 4–20 mA output signal. The sensor features switchable pressure-linear or root-extracting characteristics, making it ideal for volume flow measurement through differential pressure. With its digital display and adjustable measuring range, the QBM3020 ensures reliable performance in applications demanding exceptional accuracy and quality. Applications: Measuring pressure in ventilation, Air conditioning ducts & Pressure supervision in labs, Checks air flows, HVAC, Control fans & Cleanrooms
